package com.atguigu.spzx.manager.service.impl;


import cn.hutool.captcha.CaptchaUtil;
import cn.hutool.captcha.CircleCaptcha;
import com.atguigu.spzx.manager.service.ValidateService;
import com.atguigu.spzx.model.vo.system.ValidateCodeVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class ValidateServiceImpl implements ValidateService {
    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    /**
     * 生成图片验证码
     *
     * @return
     */
    @Override
    public ValidateCodeVo generateValidateCode() {
//        1.通过工具生成图片验证码
//        hutool
        CircleCaptcha circleCaptcha = CaptchaUtil.createCircleCaptcha(150, 48, 4, 1);
        String code = circleCaptcha.getCode();//4位验证码
        String imageBase64 = circleCaptcha.getImageBase64();//返回图片验证码进行base64编码

//        2.把验证码存储到redis里面，
//        设置redis的key：uuid  redis的value：验证码值
//        设置过期时间

        String key = UUID.randomUUID().toString().replaceAll("-", "");
        redisTemplate.opsForValue().set("user:validate" + key, code
                , 5, TimeUnit.MINUTES);

//        3.返回ValidateCodeVo对象
        ValidateCodeVo vo = new ValidateCodeVo();
        vo.setCodeKey(key);
//        todo 这里是返回图片
        vo.setCodeValue("data:image/png;base64," + imageBase64);
        return vo;
    }
}
